55020523251 has 16 divisors (see below), whose sum is σ = 74582051840. Its totient is φ = 36069973920.

The previous prime is 55020523241. The next prime is 55020523277. The reversal of 55020523251 is 15232502055.

It is not a de Polignac number, because 55020523251 - 2¹³ = 55020515059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55020523241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736446 + ... + 807708.

It is an arithmetic number, because the mean of its divisors is an integer number (4661378240).

Almost surely, 2^55020523251 is an apocalyptic number.

55020523251 is a deficient number, since it is larger than the sum of its proper divisors (19561528589).

55020523251 is a wasteful number, since it uses less digits than its factorization.

55020523251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75546.

The product of its (nonzero) digits is 15000, while the sum is 30.

The spelling of 55020523251 in words is "fifty-five billion, twenty million, five hundred twenty-three thousand, two hundred fifty-one".